Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11990646 | Power storage module | Shingo Kume | 2024-05-21 |
| 11437676 | Battery pack and production method therefor | — | 2022-09-06 |
| 7655060 | Dust collection unit for electric vacuum cleaner and upright electric vacuum cleaner | Koichi Nakai, Atsuo Hamada, Kazumasa Kamatani, Kazuyoshi Yoshimi | 2010-02-02 |
| 7175682 | Electric vacuum cleaner equipped with a dust collection unit | Koichi Nakai, Atsuo Hamada, Kazumasa Kamatani, Kazuyoshi Yoshimi | 2007-02-13 |
| 7014675 | Electric vacuum cleaner equipped with a dust collection unit | Koichi Nakai, Atsuo Hamada, Kazumasa Kamatani, Kazuyoshi Yoshimi | 2006-03-21 |